The threats have come via emails, phone calls, and once with flowers delivered directly to the front door.
Amid months of sustained intimidation, harassment and threats, Palestinian human rights defenders are coming forward to denounce a campaign that they say aims to "plant fear" into their efforts to hold Israel accountable for human rights violations.
"This is a very organised and advanced campaign," said Shawan Jabarin, director of Al Haq, a prominent Ramallah-based Palestinian human rights organisation.
"The goal is to stop us [from] dealing actively with the [International Criminal Court], cooperating actively with the ICC," Jabarin told Al Jazeera. "They want to plant fear on our side … when it comes to accountability [and] when it comes to our advocacy work."